Wire stretcher



H. NIELSEN WIRE STRETCHER Filed Jan. 19. 1925 //4/VJ /V/ELJFN. WWK w M5@ AX/MM lll Patented Aug. 4, 1925.

EDI STATES HANS NlE-ISEN, 0F DAWSQN CLB/EEK, BRITlSH; COLUMBIA, CANADA...

WBE` STRETGHEB- Application llged anuary 19, 1925. Serial No. 3,452.

`movement and which embodies novel means for tightly pulling the wireY against; the said postso thatv thek wire can be rigidly secured to the post.

A further object of the invention is the provision of a novel frame slidablysupporting the wire stretchinglever and. a novel clamp carriedby one endofthe, framevfor;

engaging the fence post or other rigid' supportf Astill further object yof the invention is to provide an improved wire stretcher of the above character, which will be durable and efficient in use, onethatx willhe simple anda easy to manufacture and one which can be placed upon the market at a small cost.

lVith these and other objectsin view, the invention consists in the nofvel construction,

arrangementand formation of parts, as will.` be hereinafter more specifically describech claimedand illustratedih the accompanying drawings, in which drawings,

Figure 1 is a top plan v'iew'of-the improved Wire Stretcher,

Figure 2 is a side elevation of the same,

Figure 3 is a transverse section-through the wire stretcher taken ontheline fir-3 of Figure 1 looking in the direction of the arrows.

Referring t0 the drawings in detail, wherein similar reference characters designate corresponding parts throughout the several views the letter A generally indicates the improved device, which comprises a frame 10, a clamp 20 disposed at one end of the frame for engaging the rigid support such as a fence post and the fence wire tightening member 3() mounted for a step by step move- J ment on the frame.

The frame l() comprises a pair of spaced parallel rack bars 11 and 12 and a palr of spaced' guide bars 13 andl 1li-VV which are dis-v posed below in spaced relation to; the. rack bars 11' and l2; An end blockc'l is arranged at one end ofthe frame andis rigidly'l connected to the terminals of the rackbars` 1U. and 12 and the guide; bars 13 and 141 `As clearly shown in Figure 3: of the drawing the forward endsofthe rackv ban 11i and-1 the guidebarl 13 are integrally connectedl by' a bridge plate 16.

The forwardg end` of the frame carries a pair of spaced'` transverselyextendingguide plates 17 and 18'and these guideiplates are riveted or otherwise securedito` theforward terminals of the rack bars 11 and 12A andthe guide bars-13 and 14 and. theplates extend laterally of the rack barl 12' and theguide bar 14.1 These plates` are rnormally.- held in spaced relation by a suitable spaciiigfblock 19 which is disposed in` spaced relation to the bridge plate 16'. As.- clearly shown inf Figure 1 of thedrawing the forward'edges of thezguide plates 17 and` 18 are provided with equi-distantlyspaced diagonally extendingv bayonet slots-'21 fora purpose which will be hereinafter more fully described.

rIhe novel clamp 20comprises a substan tially circular rig-idl'jaw 22and a substantiallysemi-circular movable jaw 232 The' rigid jaw 22 is provided withl ay shank 24.- which is` disposed'between the spacingblock 19 andthe bridge plateI 16 "and is' preferably' secured to the plate by the same bolti or" rivet utilizedforconnecting-the guide plates 17 and 18 to the rack bar 11 andtheguide bar 13. The forward ends ofthe-jaws 22 and231are provi-dedwith laterally extending ears 25 to permit the opening and closing-vl* thereof and to facilitate the placing-of the jawsk around a fencepost: The inner faces ofthe jaws are provided with biting teeth 26 fory gripping the fence post; The innen end ofthe movable jaw23 is lprovided wi-thi a rigid shank 27 which is adapted to ride between the spaced guide plates 17 and 18 and this shank receives a suitable pin or bolt 28 for fitting in any of the inclined bayonet slots 21 to permit the initial adjustment of the movable jaw 23 relative to the stationary jaw 22. The shank of the movable jaw also carries a hand screw 29 which is adapted to engage the shank of the rigid Vilhen the wire stretcher is to be associated with a fence post the forward pin 28 is slipped into one of the bayonet slots 21 so that the rigid jaw 23 will lie in relative close proximity to the post Vafter which the hand `screw 29 is manipulated which will swing the jaw on the bolt or pin 2S into intimate contact with the post for firmly holding the post between the jaws 22 and 23. Y Y' The wire stretching member comprises a movable slide. block 31 which is disposed between the rack bars 11 and 12 and the guide bars 13 and 14. The upper and lower ends of the slide block 31 carries flange plates 32 which engage the outer `faces Yof the rack bars and theguide bars for holding the block in position. A hand lever` 33 is rockably mounted at a point equi-distant its ends yupon a suitable bolt or pin 34 carried by the said block 3l and the lever on each' side of the rack bars 1l and 12 is provided with av pivoted dog' 35 for engaging the teeth of the rack bars` These dogs 35 are normally urged into engagement with the rack` bars by suitable springs or the like 36. Any preferred type of clamp 37 is carried by the slide block 31 for receiving the fence wire which is to be stretched.

Inuse of the improved tool the frame is associated with the fence post andthe dogs fromout of engagement with the teeth of thefrack bars and the slide block is slid `toward theclamp. The wire to be stretched is now moved into engagement with the clamp 37 and by swinging the lever 3,3 from first one side and then the other, the slide block can be moved in a step by stepvmove ment kthus bringing about thel stretching of the fence wire.,` i

, From the foregoing description it` can be seen that I have provided a novel wire stretcher of exceptionally simple and dura ble character which will effectively accomplish the desired results. t

Changes as to details may be made` without departing from the spirit or the scope of this invention, but

1. In ay wire stretcher, a yframe comprising a pair of spaced parallel rack bars and a pair of spaced Yparallel guide bars disposed below andin parallel relation to the rack bars, a pair of spaced laterallyA extending guide plates carried by the forward terminals of the rack bars and guide bars, the forward edges of the guide plates being; `5&5l provided with a plurality of equi-distantly spaced bayonet slots, a slide block mounted between the rack bars and the guide bars, flange plates carried by the upper and lower ends ofthe slide block` engaging the outer faces of the rack bars and the guide bars, a lever rockably mounted `at a point equiwdistantly its ends on `the l slide block, spring pressed dogs carriedj by the lever for engaging the rack bars, a wire clamp carried bythe slide block, and a clamp carried by the forward iend of the frame for engaging a fence postincluding an arcuate rigid jaw andianarcuate Inova` ble jaw, a shank for1ned-on the rigid jaw 70 rigidly secured Vto the frame, a shank formed on the movable jaw, a pin carried by the shank arranged to engage in any one-of the bayonet slots, and a feed screwcarried by the shank of the movable yjaw arranged.v to engage the shank of the rigid jaw, as and for the purpose specified.

2. A wire stretchercomprising a frame including a pairk of spaced arallel rack bars, a pair of spaced latera ly extendin guide plates *disposed at the forward en of the rack bars, a Slide` block mounted i between the rack bars, a lever rockably mounted at a point equi-distantly its` ends on the slide block, spring pressed` dogs carried by the lever for engaging the rackbars, a wire clamp carried by the slide block, and a clamp carried by the forward fend of theA frame for engaging a rigid support includ-` ing an arcuate rigid jaw and yan arcuate movable' jaw, a shank formed on the movable jaw and received between the guide plates, and means associated with the Shank and guide plates for adjusting the mova.` ble jaw toward the rigid jaw.`

In testimony whereof I affix my signature" in presence of two witnesses.`

HANS NIELSEN.

lVitnesses G. F. AHART, A. CHALMERS. 

